The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 2015
Filed:
Aug. 23, 2011
Kohei Okamoto, Yokohama, JP;
Atsushi Komoto, Moriya, JP;
Wataru Kubo, Inagi, JP;
Hirokatsu Miyata, Hadano, JP;
Takashi Noma, Hadano, JP;
Kohei Okamoto, Yokohama, JP;
Atsushi Komoto, Moriya, JP;
Wataru Kubo, Inagi, JP;
Hirokatsu Miyata, Hadano, JP;
Takashi Noma, Hadano, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A X-ray waveguide includes a core for guiding X-rays having a wavelength band in which the real part of refractive index of material is smaller than 1 and a cladding for confining the X-rays in the core. The core has a one-dimensional periodic structure in which a plurality of layers respectively formed of inorganic materials having different real parts of refractive index are periodically laminated. The core and the cladding are configured so that a critical angle for total reflection for the X-rays at an interface between the core and the cladding is larger than a Bragg angle due to a periodicity of the one-dimensional periodic structure. A critical angle for total reflection for the X-rays at an interface between layers in the one-dimensional periodic structure is smaller than the Bragg angle due to the periodicity of the one-dimensional periodic structure.